\begin{tikzpicture}
    \tkzDefPoints{0/0/B, 4/0/C, 1/3/A, 2/1/O}
    \tkzDefPointOnLine[pos=0.6](O,A)  \tkzGetPoint{A'}
    \tkzDefPointOnLine[pos=0.6](O,B)  \tkzGetPoint{B'}
    \tkzDefPointOnLine[pos=0.6](O,C)  \tkzGetPoint{C'}

    \tkzDrawPolygon(A,B,C)
    \tkzDrawSegments(O,A O,B O,C)
    \tkzDrawPolygon(A',B',C')
    \tkzLabelPoints[above](A)
    \tkzLabelPoints[left](B,A')
    \tkzLabelPoints[left,yshift=.5em](B')
    \tkzLabelPoints[right](C)
    \tkzLabelPoints[below](O)
    \tkzLabelPoints[below=-.25em,xshift=-.6em](C')
\end{tikzpicture}

